Monocular vision sensor with triangulation ranging function

Abstract

The invention provides a monocular vision sensor with a triangulation ranging function. The monocular vision sensor with the triangulation ranging function mainly comprises a shell, a socket, a circuit board, an imaging device, a laser device, a focus lens set, an illuminating light source, an imaging lens set, a measurement window and the like. A laser beam emitted by the laser device forms a collimated laser beam after passing through the focus lens set, and laser light spots are formed on the surface of a measured target. The imaging lens set images the measured target on the surface of the imaging device together with the laser light spots. Both the two-dimensional information and the distance information of the measured target can be obtained at the same time through calculation, and thus the three-dimensional information of the measured target is obtained by means of the monocular vision sensor. Compared with a conventional vision sensor, the monocular vision sensor with the triangulation ranging function has the advantages that a two-dimensional image of the measured target is obtained, meanwhile the value of the distance between the vision sensor and the measured target can be accurately obtained, and thus a three-dimensional vision sensor can be formed; in addition, the degree of integration is high, the size is small, cost is low, and measurement of a two-dimensional inclination angle can also be achieved.

Description

technical field [0001] The invention relates to an industrial sensor in the field of measurement technology, in particular to a monocular three-dimensional vision sensor with a triangular ranging function. Background technique [0002] Vision sensor is a sensor that uses computer vision technology to simulate biological vision functions, and it is also the most intelligent sensor at present. Vision sensors can obtain a lot of information of the measured target at one time, such as shape, size, color, quantity, position, attitude, etc. It is a typical multi-functional, multi-parameter, intelligent sensor. At present, visual sensors have been used in various fields of the national economy, and the scope of application is becoming wider and wider, especially in high-tech fields such as robots and advanced manufacturing. Conventional vision sensors mainly use one or more imaging devices to obtain relevant information of the measured target. [0003] However, there are some obv...

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Problems solved by technology

[0006] The purpose of the present invention is to solve the problem that the existing monocular vision sensor cannot accurately obtain the distance information between the vision sensor and the measured target, and propose a monocular three-dimensional vision sensor that can have a triangular ranging function

[0007] The present invention innovatively introduces the typical laser triangulation distance measurement technology into the traditional visual inspection system, proposes a new concept of vision system with triangulation distance measurement function, and solves the distance measurement accuracy of the traditional binocular stereo vision system in principle Disadvantages of low and poor depth positioning

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